Index: gcc/gmp/mpn/cray/add_n.c |
diff --git a/gcc/gmp/mpn/cray/add_n.c b/gcc/gmp/mpn/cray/add_n.c |
deleted file mode 100644 |
index e4f8a0da9b08fbd160171f6d88a494c3b2dc288b..0000000000000000000000000000000000000000 |
--- a/gcc/gmp/mpn/cray/add_n.c |
+++ /dev/null |
@@ -1,80 +0,0 @@ |
-/* Cray PVP mpn_add_n -- add two limb vectors and store their sum in a third |
- limb vector. |
- |
-Copyright 1996, 2000, 2001 Free Software Foundation, Inc. |
- |
-This file is part of the GNU MP Library. |
- |
-The GNU MP Library is free software; you can redistribute it and/or modify |
-it under the terms of the GNU Lesser General Public License as published by |
-the Free Software Foundation; either version 3 of the License, or (at your |
-option) any later version. |
- |
-The GNU MP Library is distributed in the hope that it will be useful, but |
-WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
-or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public |
-License for more details. |
- |
-You should have received a copy of the GNU Lesser General Public License |
-along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */ |
- |
-/* This code runs at 4 cycles/limb. It may be possible to bring it down |
- to 3 cycles/limb. */ |
- |
-#include "gmp.h" |
-#include "gmp-impl.h" |
- |
-mp_limb_t |
-mpn_add_n (mp_ptr rp, mp_srcptr up, mp_srcptr vp, mp_size_t n) |
-{ |
- mp_limb_t cy[n]; |
- mp_limb_t a, b, r, s0, c0, c1; |
- mp_size_t i; |
- int more_carries; |
- |
- /* Main add loop. Generate a raw output sum in rp[] and a carry vector |
- in cy[]. */ |
-#pragma _CRI ivdep |
- for (i = 0; i < n; i++) |
- { |
- a = up[i]; |
- b = vp[i]; |
- s0 = a + b; |
- rp[i] = s0; |
- c0 = ((a & b) | ((a | b) & ~s0)) >> 63; |
- cy[i] = c0; |
- } |
- /* Carry add loop. Add the carry vector cy[] to the raw sum rp[] and |
- store the new sum back to rp[0]. If this generates further carry, set |
- more_carries. */ |
- more_carries = 0; |
-#pragma _CRI ivdep |
- for (i = 1; i < n; i++) |
- { |
- r = rp[i]; |
- c0 = cy[i - 1]; |
- s0 = r + c0; |
- rp[i] = s0; |
- c0 = (r & ~s0) >> 63; |
- more_carries += c0; |
- } |
- /* If that second loop generated carry, handle that in scalar loop. */ |
- if (more_carries) |
- { |
- mp_limb_t cyrec = 0; |
- /* Look for places where rp[k] is zero and cy[k-1] is non-zero. |
- These are where we got a recurrency carry. */ |
- for (i = 1; i < n; i++) |
- { |
- r = rp[i]; |
- c0 = (r == 0 && cy[i - 1] != 0); |
- s0 = r + cyrec; |
- rp[i] = s0; |
- c1 = (r & ~s0) >> 63; |
- cyrec = c0 | c1; |
- } |
- return cyrec | cy[n - 1]; |
- } |
- |
- return cy[n - 1]; |
-} |